Check-row attachment for planters



(No Model.)

L HARPIN GHEGK ROW ATTAGHMEN'I' FOR PLANTERS. No. 472,996.

Patented Apr. 19. 1892.

UNITED STATES PATENT OFFICE.

LOUIS HARPIN, OF CARRO'W,ILLINOIS.

CHECK-ROW ATTACHMENT FOR PLANTERS.

SPECIFICATION formingpart of Letters Patent No. 472,996, dated April 19,1892.

. I Application filed December 11 1391. Serial No. 414,653. (No model.)

To all whom it may concern.-

Be it known that I, LOUIS HARPIN, a citizen of the United States ofAmerica, residing at Oarrow, in the county of Kankakee and State ofIllinois, have invented certain new and useful Improvements in Check-RowAttachments for Corn and Seed Planters, of which the following is aspecification, reference being bad therein to the accompanying drawings,and the letters of reference thereon, forming a part of thisspecification, in which- Figure 1 is a plan View, one oscillating leverbeing omitted. Fig. 2 is a perspective view of the lower end of one ofthe oscillating forked levers; and Fig. 3 isan end elevation of themachine.

This invention relates to certain improvements in check-row attachmentsfor corn and seed planters, which improvements are fully set forth andexplained in the following specification and claim.

Referring to the drawings, A represents the main cross-beam of themachine, having secured at each end a cross-head B.

S is a shaft boxed at each end to the under side of the cross-heads B,respectively, and

has secured on it at each end a ratchet-wheel H, and also has secured onit at about its center the cam-wheel D, having a cam-channel c forreceiving the wrist-roller 0 of the seedslide lever a, and aratchet-wheel R, provided with a pawl K for arresting backward rotationof said shaft.

E is a box secured by an arm to beam A, and is for supporting thecentral part of said shaft.

The principal new feature in this machine is the oscillating forkedlever L. This lever is provided near its lower end with the rectangularaperture V (shown particularly in Fig. 2) for the reception of theratchet-wheel H, which is secured on shaft S, while thelever lever L isloose thereon so it can freely oscillate in either direction thereon.The aperture V in said lever L is formed so as to leave the shoulder'1", (shown particularlyin Fig. 2,) which shoulder operates as a pawlagainst the teeth of the ratchet-wheel H on shaft S, and is permitted soto operate as a pawl by reason of the journalsJ of said lever beingconsiderably larger than the said shafton which it is journaled and thusto rotate said shaft forward intermittently as the forked lever isoperated in the ordinary manner by means of a wire having knots atintervals, as shown in broken lines in Fig. 3. The lever L after it hasbeen carried rearward and has become disengaged from a knot on the wirethat has carried it rearward will -be returned to its first position, asshown in Fig. 3, to engage the next tooth of ratchet H by means of aweight N,secured to its forward side by means of an arm y, thus causingsaid lever L to automati cally turn forward simply by means of beingweighted on its forward side, thus dispensing with springs or othermeans for said purpose. The advantages of thus Weighting the forkedlever L are that it saves the use of additional parts, such as springs,lessens friction, and renders the lever more certain to return, and

the use of the lever itself instead of'an additional part for a pawl tooperate the ratchet.- wheel H, and its shaft is a great advantage,

as it saves cost in construction and renders the lever more certain tooperate'the said ratchet-wheel and shaft. The guide-wheels W Z X andport P, and the plates or frames G G are of the ordinary kind for thepurpose of guiding and holding the knotted wire in proper place. Thewhole is designed to be attached to any ordinary corn or seedplanter insuch manner as to be connected with its seed-slide and operate it in theordinary having the aperture V formed to have the through the medium ofcurved arm y, subshoulder r and having the journals J J for stautiallyas and for the purpose set forth. journaling said lever on said shaft insuch manner that the ratchet-Wheel I-I, may be LOUIS I-IARPIN.

5 within said aperture, said journals J J being Witness larger indiameter than said shaft, so that e v 1 7 said lever will be looselyjournaled thereon FLANDER if HARPIN, and so that said shoulder a" mayengage said g, ratchet-wheel as a pawl, and the'weightN, se-

' NAPOLEON GABols,

mark

1o cured directly to said lever at its forward side

